2315755481 has 16 divisors (see below), whose sum is σ = 2557835280. Its totient is φ = 2082938880.

The previous prime is 2315755451. The next prime is 2315755517. The reversal of 2315755481 is 1845575132.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 690375625 + 1625379856 = 26275^2 + 40316^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315755481 - 2⁶ = 2315755417 is a prime.

It is a super-2 number, since 2×2315755481² = 10725446895563082722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (2315755441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537785 + ... + 542073.

It is an arithmetic number, because the mean of its divisors is an integer number (159864705).

Almost surely, 2^2315755481 is an apocalyptic number.

It is an amenable number.

2315755481 is a deficient number, since it is larger than the sum of its proper divisors (242079799).

2315755481 is a wasteful number, since it uses less digits than its factorization.

2315755481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356.

The product of its digits is 168000, while the sum is 41.

The square root of 2315755481 is about 48122.2971292934. The cubic root of 2315755481 is about 1323.0133714462.

The spelling of 2315755481 in words is "two billion, three hundred fifteen million, seven hundred fifty-five thousand, four hundred eighty-one".